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Measurement and Instrumentation

Measurement and Instrumentation
The coil of a moving coil meter has 100 turns, is 40 mm long and 30 mm wide. The control torque is 240×10-6 N-m on full scale. If magnetic flux density is 1Wb/m2 range of meter is

 3 mA.
 1 mA.
 2 mA.
 4 mA.

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Measurement and Instrumentation
A CRO probe has an impedance of 500 kΩ in parallel with a capacitance of 10 pF. The probe is used to measure the voltage between P and Q as shown in figure. The measured voltage will be

 5 V.
 4.54 V.
 3.53 V.
 4.38 V.

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Measurement and Instrumentation
In a megger controlling torque is provided by

Gravity
Coil
Spring
Eddy current

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Measurement and Instrumentation
The household energymeter is

An integrating instrument
None of the listed here
An indicating instrument
A recording instrument

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Measurement and Instrumentation
A 0 - 200 V voltmeter has a guaranteed accuracy of 1% of full scale reading. The voltage measured by this instrument is 50 V. What is the limiting error?

 2%
 5%
 3%
 4%

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Measurement and Instrumentation
The function of shunt in an ammeter is to

By pass the current
None of the listed here
Increase the sensitivity of the ammeter
Increase the resistance of ammeter

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